TY - CHAP A1 - Ballmann, J. A1 - Raatschen, Hans-Jürgen A1 - Staat, Manfred T1 - High stress intensities in focussing zones of waves N2 - The propagation of mechanical waves in plates of isotropic elastic material is investigated. After a short introduction to the understanding of focussing of stress waves in a plate with a curved boundary the method of characteristics is applied to a plate of hyperelastic material. Using this method the propagation of acceleration waves is discussed. Based on this a numerical difference scheme is developed for solving initial-boundary-value problems and applied to two examples: propagation of a point disturbance in a homogeneously finitely strained non-linear elastic plate and geometrical focussing in al linear elastic plate. KW - Technische Mechanik KW - Wellen KW - mechanical waves Y1 - 1985 U6 - http://dx.doi.org/10.1016/B978-0-444-42520-1.50015-3 ER - TY - JOUR A1 - Bullerschen, Klaus-Gerd A1 - Wilhelmi, Herbert A1 - Wimmer, W. T1 - Influence of non-uniform material properties and water cooling on current density and temperature profiles in arc furnace elektrodes JF - Steel Research. 56 (1985), H. 11 Y1 - 1985 SN - 0177-4832 SP - 559 EP - 564 ER - TY - JOUR A1 - Blome, Hans-Joachim A1 - Priester, Wolfgang T1 - Vacuum energy in cosmic dynamics JF - Astrophysics and Space Science. 117 (1985), H. 2 Y1 - 1985 SN - 0004-640X SP - 327 EP - 335 ER - TY - JOUR A1 - Starke, Günther A1 - Drews, P. T1 - Development approaches for advanced control in automated arc welding Y1 - 1985 N1 - Konferenz-Einzelbericht: Automation and robotisation in welding and allied processes. International conference on automation and robotisation in welding and allied processes, Strasbourg, FR, 02.09.1985-03.09.1985 SP - 115 EP - 124 ER - TY - JOUR A1 - Gerhardt, Hans Joachim A1 - Kramer, C. A1 - Janssen, L.-J. T1 - Flow studies of an open jet wind tunnel and comparison with closed and slotted walls Y1 - 1985 N1 - Konferenz-Einzelbericht: 6th Colloquium on Industrial Aerodynamics, Road Vehicle Aerodynamics, Fachhochschule Aachen, 19.-21.6.1985 SP - 7 EP - 28 ER - TY - JOUR A1 - Gerhardt, Hans Joachim A1 - Cooper, K.-R. A1 - Whitbread, R. A1 - Gary, K.-P. (u.a.) T1 - A comparison of aerodynamic drag measurements on model trucks in closed-jet and open-jet wind tunnels Y1 - 1985 N1 - Konferenz-Einzelbericht : 6th Colloquium on Industrial Aerodynamics, Road Vehicle Aerodynamics, Fachhochschule Aachen, 19.-21.6.1985 SP - 261 EP - 274 ER - TY - JOUR A1 - Gerhardt, Hans Joachim A1 - Kramer, C. T1 - Aerodynamsiche RA-Optimierung JF - Zentralblatt fuer Industriebau. 31 (1985), H. 5 Y1 - 1985 SN - 0044-4227 SP - 358 EP - 362 ER - TY - JOUR A1 - Schmitz, Günter A1 - Schmitt, H.J. A1 - Dammann, H. T1 - Weakly Guiding Semileaky Isolator with a Form-Birefringent Top Layer JF - Conference on Lasers and Electro-Optics ; (5, 1985, Baltimore, Md.) ; Conference on Lasers and Electro-Optics (CLEO '85) ; (1985.05.21-24 ; Baltimore, Md.) Y1 - 1985 SP - 260 PB - Optical Society of America CY - Washington, DC ER - TY - JOUR A1 - Sponagel, Stefan A1 - Akbay, U. A1 - Becker, E. T1 - Instability of plane Couette flow of viscoelastic liquids JF - Journal of non-Newtonian fluid mechanics. 18 (1985), H. 2 Y1 - 1985 SN - 0377-0257 SP - 123 EP - 141 ER - TY - JOUR A1 - Biener, Ernst T1 - Rehabilitation of old gravity dams JF - [Transactions] : proceedings of fifteenth international congress on large dams ; 24 - 28 Juin 1985, Lausanne, Suisse = Quinzieme Congres International des Grands Barrages. - Bd. 4 Y1 - 1985 N1 - International Congress on Large Dams <15, 1985, Paris> SP - Q 59, R.2, S. 21 EP - 23 PB - Intern. Commission on Large Dams CY - Paris ER -